About The Cover

COVER Extreme ultraviolet image of the sun revealing gas at 1.5 million kelvin shaped by magnetic fields. Bright regions are hot, dense plasma loops with strong magnetic fields, while dark regions imply open magnetic field lines and are the source of the high-speed solar wind. The image was taken by the Extreme Ultraviolet Imaging Telescope (EIT) on the ESA/NASA Solar and Heliospheric Observatory (SOHO) spacecraft. See page 810. [Image: Courtesy of the SOHO/EIT Consortium].